With two of them I can get 8 - 10 hours. However, because they're usb pass-throughs, you can hook one up to a computer and keep it charging all day. Also, most vapers are going to get about 14 - 16 hours from two of them. I'm an animal and nothing lasts me that long.
The one white one I ordered from
fasttech did experience a connection problem a few days after receiving it and I did return it. However, it was identical to the IVape ones. I have the black,white and silver from IVape and the another white from
fasttech. They completely changed my need for any ego
batteries and make excellent out and about, stealth, backup, and even primaries. I swear by them. I've now given all but maybe two egos away now since getting these. You simply cannot pack more electronics into a smaller package, and an ego/stick batt with Ohm meter and variable voltage? A no-brainer, must have imho.
Also, they have a micro connection which is the same as I use on my Galaxy SIII. Couldn't be more convenient to use. whatever charges your phone, charges this battery.
